EkybooachelbyL EkybooachelbyL

04-03-2017
Biology

contestada

The atomic mass of potassium is 39. if its atomic number is 19, how many neutron are there

Respuesta :

04-03-2017

19. The atomic number indicates how many neutrons there are, and the atomic mass tells us how many protons and neutrons are present within the nucleus of an atom.

Answer Link

Otras preguntas

The triangular trade system included question 1 options: north america, europe, and africa. africa, asia, and north america. asia, africa, and australia europe,

A frozen yogurt machine is usually cleaned by a method called

What can the government of a relatively poor country do to promote economic prosperity? check all that apply. encourage transmission of knowledge by removing pa

Any healthcare team member who leave their desks must be sure to

How to find slope and y intercept 6x-5y=15?

Depolarization involves a neuron becoming?

Which number is prime? Choose each correct answer. 55 56 57 58 59 60 61

What factor drew farm families to northern cities in the late 1800s?

There are many different types of scientific investigations. Which of the following forms requires the identification and control of variables? A. observati

What radius of a circle is required to inscribe a regular hexagon with an area of 210.44 cm2 and an apothem of 7.794 cm?